If I could have had somebody build the dam in under a month, I would have skipped the construction drain. I would have either included some valves on my siphon drain with access to the pit or put in an additional pipe for the irrigation. Maybe a 4 inch pipe buried through the dam at water level and down to a valve behind the dam similar to the siphon drain but without the vent. It would have required a pump to get the line full of water and then worked as if the pipe was straight through the base of the dam. Could be used to draw the pond down and or to water my grapes and berries. For irrigation I would have the inlet about 6 foot deep as mine now draws from 17 foot deep and smells like rotten eggs.
Last edited by DC70; 09/26/18 11:03 PM.
